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From: Alistair Francis <alistair.francis@xilinx.com>
To: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>,
	Edgar Iglesias <edgar.iglesias@xilinx.com>,
	qemu-arm <qemu-arm@nongnu.org>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Alistair Francis <alistair.francis@xilinx.com>
Subject: Re: [Qemu-devel] [PATCH v1 2/2] target-arm: Enable EL2 for the A53s and A57s
Date: Mon, 9 May 2016 09:58:04 -0700	[thread overview]
Message-ID: <CAKmqyKMNbNoph2s1F4ZnC_Dqc-t_=bRtm5+oAHXnvdF09KHVeg@mail.gmail.com> (raw)
In-Reply-To: <20160507015121.GF16305@toto>

On Fri, May 6, 2016 at 6:51 PM, Edgar E. Iglesias
<edgar.iglesias@gmail.com> wrote:
> On Fri, May 06, 2016 at 11:25:52PM +0100, Peter Maydell wrote:
>> On 6 May 2016 at 19:11, Alistair Francis <alistair.francis@xilinx.com> wrote:
>> > Enable EL2 by default for the A53s and A57s.
>> >
>> > Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
>>
>> I don't really want to do this until we actually have
>> something approaching a workable EL2 implementation
>> (ideally including support in the GIC, since EL2's
>> not much good without it). I'd hope that software ought
>> to be able to work with an "EL3, but no EL2" CPU, since
>> that's a valid combination, unless it's very strongly
>> tied to a particular h/w implementation.
>
> Yes, I agree, we've got a few more things to take care of.

I haven't been keeping up with the EL2 status on mainline, so if you
guys don't want to enable it yet that's fine with me. Just thought I'd
try.

I assume you don't have any fundamental problems with the first patch
then, so hopefully at least that can get in.

I might have to look at disabling EL3 support for the ZynqMP machine
form the command line, as I can't boot Linux with EL3 but not EL2.

Thanks,

Alistair

>
> Cheers,
> Edgar
>

  reply	other threads:[~2016-05-09 16:58 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-06 18:10 [Qemu-devel] [PATCH v1 0/2] target-arm: Add support for HSTR_EL2 Alistair Francis
2016-05-06 18:11 ` [Qemu-devel] [PATCH v1 1/2] target-arm: Add the HSTR_EL2 register Alistair Francis
2016-05-13 17:46   ` Peter Maydell
2016-05-13 20:39     ` Alistair Francis
2016-05-06 18:11 ` [Qemu-devel] [PATCH v1 2/2] target-arm: Enable EL2 for the A53s and A57s Alistair Francis
2016-05-06 22:25   ` Peter Maydell
2016-05-07  1:51     ` Edgar E. Iglesias
2016-05-09 16:58       ` Alistair Francis [this message]
2016-05-09 17:01         ` Peter Maydell
2016-05-10  0:16           ` Alistair Francis
2016-05-10  8:09             ` Peter Maydell
2016-05-10 10:36               ` Edgar E. Iglesias
2016-05-10 13:22                 ` Peter Maydell
2016-05-10 18:18                 ` Alistair Francis
2016-05-10 18:13               ` Alistair Francis

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